DK1563268T3 - Power or pressure sensor and use of the same - Google Patents

Power or pressure sensor and use of the same

Info

Publication number
DK1563268T3
DK1563268T3 DK03792435T DK03792435T DK1563268T3 DK 1563268 T3 DK1563268 T3 DK 1563268T3 DK 03792435 T DK03792435 T DK 03792435T DK 03792435 T DK03792435 T DK 03792435T DK 1563268 T3 DK1563268 T3 DK 1563268T3
Authority
DK
Denmark
Prior art keywords
diaphragm
flexible diaphragm
frame
pressure sensor
load
Prior art date
Application number
DK03792435T
Other languages
Danish (da)
Inventor
Heikki Ruotoistenmaki
Original Assignee
Finsor Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Finsor Oy filed Critical Finsor Oy
Application granted granted Critical
Publication of DK1563268T3 publication Critical patent/DK1563268T3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1102—Ballistocardiography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/113—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb occurring during breathing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01L1/2231—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being disc- or ring-shaped, adapted for measuring a force along a single direction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/008—Transmitting or indicating the displacement of flexible diaphragms using piezoelectric devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0247—Pressure sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/0816—Measuring devices for examining respiratory frequency

Abstract

The invention relates to a force or pressure sensor and a method for applying the same. The pressure sensor includes a substantially rigid, mechanical-load resistant frame, a flexible diaphragm secured over its peripheral rim to the frame, and a piezoelectric sensor diaphragm applied to the surface of the flexible diaphragm. The sensor diaphragm loading element comprises a substantially rigid, mechanical-load resistant cover, having its protrusion or shoulder bearing against a middle section of the flexible diaphragm and thereby prestressing the flexible diaphragm and the piezoelectric sensor diaphragm attached thereto. The frame and the cover define therebetween a closed, hermetically sealed housing chamber, the flexible diaphragm and the piezoelectric sensor diaphragm located thereinside. The placement of one or more responsive, yet load-resistant sensors in contact with a bed enables measuring a sleeping or lying person for his or her heart rate and respiratory amplitude, as well as frequency.
DK03792435T 2002-08-21 2003-08-15 Power or pressure sensor and use of the same DK1563268T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20021508A FI116097B (en) 2002-08-21 2002-08-21 Force or pressure sensor and method for its application
PCT/FI2003/000604 WO2004018986A1 (en) 2002-08-21 2003-08-15 Force or pressure sensor and method for applying the same

Publications (1)

Publication Number Publication Date
DK1563268T3 true DK1563268T3 (en) 2007-09-17

Family

ID=8564460

Family Applications (1)

Application Number Title Priority Date Filing Date
DK03792435T DK1563268T3 (en) 2002-08-21 2003-08-15 Power or pressure sensor and use of the same

Country Status (8)

Country Link
US (2) US7726209B2 (en)
EP (1) EP1563268B1 (en)
AT (1) ATE362099T1 (en)
AU (1) AU2003251019A1 (en)
DE (1) DE60313796T2 (en)
DK (1) DK1563268T3 (en)
FI (1) FI116097B (en)
WO (1) WO2004018986A1 (en)

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Also Published As

Publication number Publication date
EP1563268A1 (en) 2005-08-17
FI20021508A (en) 2004-02-22
DE60313796D1 (en) 2007-06-21
EP1563268B1 (en) 2007-05-09
WO2004018986A1 (en) 2004-03-04
FI20021508A0 (en) 2002-08-21
US20060129047A1 (en) 2006-06-15
DE60313796T2 (en) 2007-09-06
US7726209B2 (en) 2010-06-01
US7862523B2 (en) 2011-01-04
ATE362099T1 (en) 2007-06-15
AU2003251019A1 (en) 2004-03-11
FI116097B (en) 2005-09-15
US20080167561A1 (en) 2008-07-10

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